The operational amplifier of this circuit can be the 741. The circuit has very low consumption and can be powered by two 9-B batteries. Low voltage amplifiers can be used.
This circuit was found in an American documentation from the 1980s. The circuit combines filters of...
This reaper or signal limiter can be used to convert a sinusoidal signal into a square. The...
This circuit was found in an 80's Electronic Design. It amplifies TTL fast signals for a coaxial...